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Autonomous System

AS58122

NorthgateArinso Belgium BV

Announced IPs
4,352
CIDR prefixes
3
ASN
AS58122

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

65/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
173.245.160.0/21 2.0K
3.6%
NorthgateArinso Belgium BV BE
178.217.16.0/21 2.0K
0.0%
NorthgateArinso Belgium BV BE
212.190.64.0/24 256
0.0%
NorthgateArinso Belgium BV BE

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS58122 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
178.217.16.0/21 27,217 2026-08-01 14:51:24
178.217.20.0/22 25,167 2026-08-01 14:39:21
212.190.64.0/24 20,466 2026-08-01 14:59:07
178.217.20.0/23 20,227 2026-08-01 14:59:07
178.217.22.0/23 20,213 2026-08-01 14:59:07
173.245.160.0/21 7,886 2026-08-01 14:59:07
173.245.164.0/22 4,442 2026-08-01 14:39:09
173.245.160.0/22 4,442 2026-08-01 14:39:09

Frequently Asked Questions

What is AS58122?

AS58122 is an Autonomous System Number assigned to NorthgateArinso Belgium BV. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS58122 announce?

AS58122 announces 4.4K IPv4 addresses distributed across 3 routed CIDR prefixes. The network is registered in Belgium.

Who operates AS58122?

AS58122 is operated by NorthgateArinso Belgium BV. The organization is based in Belgium. You can view all IP ranges and related ASNs on the organization page.

What country is AS58122 registered in?

AS58122 is registered in Belgium. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-08-01 15:10:31 UTC
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